Dry mill



FIG. 1 is a front perspective view of a dry mill showing our new design, the dry mill includes a battery that is fragmentarily shown in broken lines for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a front view of FIG. 1, a rear view is omitted since it is symmetrical with the front view;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof. 

The ornamental design for a dry mill, as shown and described. 